<!--<script lang="ts" setup>-->
<!--import {version,ref} from 'vue'-->
<!--const msg = ref('hello world Vue.')-->
<!--</script>-->

<script lang="ts">
import {version} from 'vue'
export default {
  data(){
    return {
      msg:'hello world Vue.',
      version
    }
  }
}
</script>


<template>
  <h1>{{msg}}</h1>
  {{ version }}
  <p v-for="i in 15">{{i}}</p>
</template>
